Window ventilator



Oct. 18, 1949. L. G. ALLEN WINDOW VENTILATOR Filed Sept. 6, 1946 ammo b Patented Oct. 18, .1949

WINDOW VENTHATOR 1v LeeGrAllen, Memphis, Tenn.

Annfleation September 6, IMGaSeriaI Mo -7695,15? i sfllalma .(Cl;.'9.8=99.1')

room.

T r m dy thiaitis vr llknown.to nroridedeflectors,,-atteohedein various ways to the window frame or sill, which cause air entering through the window to' bedivertodinan -upward direction. Such deflectors achieve, to a greater or less extent; their objector avoiding dizeotdraitsawhile providing a certain amount ot; ventllation. Hcwever they;rareiuniverseilyrsubiectsto the disadvantage that a very considerable portionof the air striking the windowopening is deflected-so as to be prevented i-fromentering the T001117; and to 'the additional.disadvantage-that ther'airv occupyi-ng thclower por-tion of the room-is not disturbed. except-omvery :windyadays or when there is a sizable thermal -diflerencel between-rthe inside and-"outside-aim 1 It is a primary object of my invention to provide simple and inexpensive means for effectively controlling window drafts without interfering. to

any appreciable extent with natural ventilation.

It is a further object to provide a draft deflector which directs entering air both upwardly and downwardly so as to produce movement ofthe air in all parts of the room. It is a still further object to permit full advantage to be taken of any breeze which may be blowing, while positively preventing undesirable drafts which are apt to disturb papers and the like and which may also be harmful from a health standpoint. Still other objects will be apparent from the complete description of this invention which follows.

These objects are accomplished by my novel device which consists of a pair of flat rectangular .members which are mounted on suitable end plates so as to lie inside and across the window opening. The rectangular members are angularly disposed to one another and are engaged along a longitudinal edge of each, so that a plane angle is formed pointing toward the window opening. The resulting wind deflector is so mounted that a small opening is left between 2: the lower member. and -.-the.. window sill, :withthe result. that. air currents ,are..,.permi ted.. to enter the. room partly. above and. partly. below he .deflectoiov being. dire tedr spec ively; toward. the

5 ceiling,..andtoward the. flooix.v In this .way,. direc drafts are avoided, yetsubstantially allpofcthe ainapnxoaching the. window. openin is. permitted to enter thereon-..

To obtain .a more complete understanding. of

.my, dericeireierence. may. he. hadto theacoom- Denying drawings..;.

Figure 1 is a perspective view, from..theilnte iqr of a roomaot. a window. on.v whichxhasbe n mounted. my. wind. d flector...-

l6 Figure 2 is aperspe tive .viewpna larger scale of he arran ment .of thedeflecting. members and their p on withres e t to the end. plate.

Figure 3 is anelevation of they endplate, showing the position. of thedefl'ecting; members.

20.1 gure 41s an. elevation orthaendmateshow lng an; Optional arran ement of the deflec in members, particularlyidesigned to reduce...th.e amount of water .entering the window during ,a rain, although. with some. S crifice. of ventila- Referring to the drawings in detail Figure 1 shows a conventional. guillotine-type, window, viewed from theinterior of'the'room. End plates I are-,attached," removably if desired, either to 80""thewindowjamb 2;or to .thesill 3or to both, and

are disposedadiacent"and'parallel to the jamb. The outer edge of the end plates lies just inside the edge of the window sash groove 4 in order that the sash 5 may be lowered and the window 315 closed without any interference from the deflector or end plates.

The deflector proper consists of an upper plane rectangular member 6, which slants inwardly and upwardly away from the window opening, and

.40 a lower plane rectangular member I, which slants inwardly and downwardly away from the opening. The two members are joined together at their outer longitudinal edges, and are attached to and held by the end plates l, as clearly shown 45 in Figure 3. They may be attached to the end plate by any desired means, such as through the use of small angles, by nailing, or by inserting them into grooves cut in the end plates and securing them by nailing. This latter method is that which is shown in the drawings.

It will be seen from Figures 1, 2 and 3 that a small opening is left between the lower edge of the deflector member I and the window sill 3, to permit air to enter the room under the deflector in a downward direction. The actual size member 9 is extended outwardly over and beyond the outer edge of the lower deflecting member 1' and thus provides a shield to deflect rain drops outwardly. This construction permits leaving the window open during light rains, so as to admit air while keeping out the rain. Such a deflector may be built rigidly in this form or, alternatively,

may be constructed so that the upper member 9 can be adjusted either in the position shown in Figure 4 or that illustrated in the other figures. This may be done by providing separate grooves in the end plates to accommodate the deflecting member in the two positions or by providing removable stops for inserting in the grooves, or by any other desired means.

The shape of the end plates may vary considerably without effect on the operation of this device. Figures 1, 2 and 3 show a rectangular plate, while Figure 4 shows a plate having its inner side partially cut away. Other variations may be readily imagined.

My deflector may be constructed of wood, metal,

plastic and the like, or of a combination of mav terials, as for example, the end plates and lower' deflecting member may be made of metal and the upper deflecting member comprise a glass panel.

Whilefor the sake of clarity and simplicity I have described and illustrated my deflector according to specific embodiments thereof, it is to .be understood that many changes may be made without departing from the spirit or scope of my invention and that I do not desire to be limited ventilator comprising a pair of vertical end plates disposed on the sill and a pair of deflector plates connected at their ends to the end plates and disposed in longitudinal edge abutment with one another, one of the deflector plates being inclined upwardly of the room and the other downwardly toward the floor, with the apex of the abutting deflector plates directed outwardly and the bottom edge of the lower deflector plate spaced above said sill.

2.-,Th e combination with-. a window comprising inner ll b t n 'iinwe d fbf r b of a ventilator comprising a pair of deflector plates positioned above and extending longitudinally of said sill and having their ends attached at the sides of the window, said plates being disposed in longitudinal edge abutment with one another, one of the deflector plates being inclined upwardly of the room andthe other downwardly toward the floor, with the apex of the abutting deflector plates directed outwardly and the bottom edge of the lower deflector plate spaced above said sill.

3. The combination with a'window comprising an inner sill extending inwardly Of a room, of a ventilator comprising a pair of deflector plates positioned above and extending longitudinally of said sill and having their ends attached at the sides of the window, said plates being disposed in angular, longitudinally abutting relation, one of the deflector plates being inclined upwardly of the room and the other downwardly toward the floor, the abutting portions 'of'the' deflector plates being directed outwardly, the bottom edge of the lower deflector plate being spaced above the sill,

Number Name Date 1 779,009 Stern Jan. 3, 1905 886,714 Mallory May 5, 1903 1,201,615 OFlynn Oct. '17, 1916 1,236,193 McGarth etal.- Aug. 7, 1917 2,079,590 Armstrong May 11, 1937 2,358,398 J ochums $ept. 19, 1944; 

